We have a 3Bed Semi on BG dual-fuel (online fixed price until 2011) paying by monthly DD.
Theres 3 of us in residence (4 if u count the dog

) with my OH in all day due to disability
House is double-glazed (renewed last yr) and has a condensing-combi boiler (3yrs old) (with brilliant digital thermostat) with no hot water tank, and has more than recommended loft insulation, along with 3/4 way up cavity wall insulation (due to the way the house was built)
Gas = £44 /month
Elec = £35 /month
Total = £79/month
So we pay £948 annually at the moment.
EDIT: We also have TRVs on all but 2 rads, but we could do with some decent draught excluders on the doors!